Upgrade stages from 470Hp up to 485Hp for the 3.8i of the Porsche 997.

Stage 1 & 2 upgrades, are presented below.

Stock engine specs:   

Capacity: 3797cc                           
bore x stroke: 102.7 × 76.4 (mm)
Compression ratio: 12:1

Power: 435hp
Torque: 430Nm

Stage 1:

Engine upgrades:

-Stage 1 Software upgrade

Engine performance:

Power: 470hp
Torque: 470Nm

 Stage 2:

Engine upgrades:

-Stage 2 Software upgrade

Engine performance:

Power: 485hp
Torque: 485Nm